Ask Question
6 December, 16:18

21x3 - 9x2 - 28x + 12

+4
Answers (1)
  1. 6 December, 16:32
    0
    (7x-3) (3x^2 - 4)

    Step-by-step explanation:

    21x^3 - 9x^2 - 28x + 12

    We can factor by grouping

    Factor out 3x^2 from the first two terms and - 4 from the last two

    21x^3 - 9x^2 - 28x + 12

    3x^2 (7x-3) - 4 (7x-3)

    Now factor out (7x-3)

    (7x-3) (3x^2 - 4)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “21x3 - 9x2 - 28x + 12 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers